Aphoton with a wavelength of less than 50.4 nm can ionize a helium atom. what is the ionization potential of helium? answer in j

The first element on the periodic table of elements is carbon. a. true b. false

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?